Patents by Inventor Dirk Lippitis

Dirk Lippitis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of a shaped part of an ultra high molecular weight polyethylene
    Publication number: 20060142521
    Abstract: The invention relates to a process for the manufacture of a shaped part of ultra high molecular weight polyethylene (UHMWPE) comprising melt processing, wherein a) the UHMWPE has a weight average molecular weight (Mw) of at least 1*106 g/mol, b) during the shaping the storage plateau modulus of the UHMWPE (G*) is kept at a value of at most 1.5 MPa, c) whereafter, before the cooling, the G* is raised to its final value. The invention further relates to a shaped part obtainable with the process and the use of the shaped part in a medical application.
    Type: Application
    Filed: June 26, 2003
    Publication date: June 29, 2006
    Inventors: Sanjay Rastogi, Robbert Duchateau, Gerardus Johannes Gruter, Dirk Lippitis